74. 5 mc Radiosonde with 20' end fed Antenna. Black battery box wrapped in polyethylene.
Plastic ballast Reservoir contains 3000gm ballast Dribbler to have been actuated by 45 th contact on radiosonde.
15'Dia.-008" thick polyethylene Balloon. H.A. Smith Inc. with reinforced blow out patches to vent gas when fired by B/S.
Baro-Switch set to deflate large Balloon should train descend to 10,000'.
6 each. _General Mills Balloons, 200 cuft .001" polyethylene.
Payload in picture-frame mounting.
FIG.44
2ea. Underinflated metro Balloons for Stadia measurements, 240' from center of small balloon to center of 15' balloon.
NYU BALLOON PROJECT
FLIGHT IIA
7-7-47
ED-48-41